Knife blade



Feb. 2 1926.

1,571,886 $.A.NORTH Y KNIFE BLADE Filed June 11, 1921 INVENTOR 1A] Rn 25, v I 6 annual 31 North Patented Feb. 2, 1926.

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SAMUEL A. NORTH, OF BBIDGEPGBT. oonnnctrrcunnssrenon TO REMINGTON ARMS COMPANY, INC., A CQRPORATION OF DELAWARE.

KNIFE BLADE.

Application filed. June 11, 1921. Serial No. 476,884.

To all whom it may concern r I Be it known that I, SAMUEL A. Nomi-I, a citizen of the United States, residing at Bridgeport, in the county of. Fairfield and 6 State of Connecticut, have'invented certain new and useful Improvements in Knife Blades, of which the following is a specifica tion.

This invention relates to nail marks, or to as the depressed portions of blades which are used as catches for the thumb nail, in order to raise the blade from its closed position. For the purpose of illustration, the improved nail mark is shown in the drawings as ap plied to a pocket knife blade, but it is to be understoodthat the invention may be used in other relations. Heretofo-re various marks have been affixed to the blades of pocket knives by etching or otherwise, generally located below the nail-engaging recess and in the plane of the side of the blade, and in the varied uses to which pocket knives are adapted markings thus placed in the plane of the blade are liable to defacement or mechanical injury which will destroy their usefulness for the purpose for which they are designed.

One object of the present invention is to utilize the usual nall-ongaging recess and shoulder as a protective device for markings impressed on the blade which will preclude the possibility of said markings being damaged or etfaced.

A further object of the invention is to provide a plurality of nail-engaging recesses formed by a shoulder which surrounds and protects a panel having any desired markings impressed thereon.

A further object of the invention is to pro vide a knife blade formed with a depressed panel carrying markings which may be formed as characters raised from the bottom of said depressed portion with a protecting shoulder spaced from said raised markings to form nail-engaging recesses.

A further object of the invention is to affix any desired notation to the blade of a pocket knifein such a manner that it is in whole or in part depressed below the plane of the knife blade and is surrounded by a shoulder spaced therefrom to form nailengaging recesses.

The term nail engaging recesses as used in the foregoing specification and in the apa thumb nail engaging the nail mark.

Fig. 3 is a blade illustrating a modified form of the invention. 7

Fig. 4 is a section on the line 44 Fig. 3.

Referring to Fig.1, 5 denotes a depressed.

panel formed on the blade, 6 indicates raised markings the upper surfaces of which are in a plane substantially parallel to that of the knife blade. These markings may be formed as letters, symbols or in any other desired pattern. For the purpose of illustration, I have applied the word Remington. The border of the panel forms a shoulder, 7, spaced from said markings to form recesses the upper edge of which may be engaged by the thumb nail in opening the knife blade.

Several methods may be utilized in the manufacture of blades embodying this invention. By swag'ing, forging, or stamping the blades in a punchmg machine equipped with suitable stamping dies, the blades may be struck up in one operation. The blades may also be engraved in such a manner that the figures or design stand out in relief, but such a procedure has been found to be much more expensive than the other methods mentioned.

In the modification of my present invention'as illustrated in Fig. 3 of the accompanying drawings, I employ a blade which has a raised panel, 8, which may be substantially in the same plane as the blade, and is surrounded by the groove 11. The depth of this groove is sufficient to form a shoulder 12 which may be engaged by the thumb nail in opening the blade. Depressed letters, words or designs, 9, may appear on the panel. This modified form allows the accomplishments of the objects of the invention at a considerably reduced cost in manu- 'iaeture since the results may be accomplished by the use of a stamping die.

From the foregoing it is obvious that I have devised novel means of utilizing a nailengaging recess as a means for protecting against injury nun-kings which it may be found desirable to impress on the blade.

Haring described my invention, 1 claim:

1. In a pivoted knife blade, a panel depressed in said blade, markings extending outwardly from the bottom of a part of said panel, a plain depression between said markings and the wall of said depressed panel, the wall of said depressed panel constitutinga shoulder surrounding said out- \rardly extending markings and spaced therefrom by said plain depression to form nail engaging recesses on opposite sides thereof.

2. In a pivoted knife blade, a. panel depressed in said blade, an outwardly extending part within said panel, a plain depression between said part and the Well of said depressed panel markings on said outwardly extending part out of the plane thereof, the wall of said depressed panel constituting a shoulder surrounding said outwardly extending part and spaced therefrom by said plain depression. to form nail erngagring reeesses on opposite sides thereof.

In witness whereof i have signed my name hereto this 6th day of June 1921..

SAMUEL A. NORITII. 

